The initialism PSU often refers to a Power supply unit, or specifically a computer's Power supply unit (computer).
The PSU powers all the computer's main components. There are many different PSUs that can come with anywhere up to 1500 watts for a standard desktop computer. The PSU is also sometimes referred to as the most important part of a computer. Without a good, reliable PSU a computer cannot function properly, or it could damage the rest of the computer.
PSU may also refer to:
Universities:
In entertainment:
In mathematics:
Other Uses:
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